I can create and analize queries on Oracle SQL databases, create PL/SQL scripts of any type and complexity, design databases using the entity-relationship model and construct the respective relational data model using Oracle SQL Developer. Also I really like develop solutions with JAVA (on Eclipse or JDeveloper), Python or even C++. I have knowledge of HTML and Javascript for data visualization (tables, 2D and 3D graphs, text, etc) and simple web pages.
Furthermore, I know how to use tools for technical and scientific computing, software like Wolfram Mathematica, Maple and Matlab (data visualization, image processing and data science).
Finally, I'm able to use Corel Draw for simple draws and designs.